Fixed typos

Renamed class CMS_SESSION_CONSTANT to CMS_SESSION_CONSTANTS
Removed unneeded classes and files.
Update SQL implementation.

modules/session_auth/cms_session_constants.e

@@ -0,0 +1,19 @@
+note
+	description: "Summary description for {CMS_SESSION_CONSTANTS}."
+	date: "$Date$"
+	revision: "$Revision$"
+
+class
+	CMS_SESSION_CONSTANTS
+
+
+feature
+	session_auth_token: STRING = "EWF_ROC_SESSION_AUTH_TOKEN_"
+			-- Name of Cookie used to keep the session info.
+			-- TODO add a config file to be able to customize this value via coniguration file.
+
+	session_max_age: INTEGER = 86400
+			-- Value of the Max-Age, before the cookie expires.
+			-- TODO add a config file to be able to customize this value via coniguration file.
+
+end